[Bug tree-optimization/42521] New: [4.5 Regression] ICE: in graphite_loop_normal_form, at graphite-sese-to-poly.c:2844

[zsojka at seznam dot cz]

Command line:
gcc -O3 -fgraphite-identity -c testcase.c

Tested versions:
trunk r155434 - crash
trunk r155363 - crash (with and without checking)
trunk r155248 - crash
trunk r154830 - crash
trunk r153685 - different crash (in build_loop_iteration_domains)
4,4 r155365 - OK
4.4 r154975 - OK (with checking)
4.4.2 - OK (gentoo)

Output:
$ /mnt/svn/gcc-trunk/binary-155434-lto/bin/gcc -O3 -fgraphite-identity -c
testcase-manual.c
testcase-manual.c: In function ‘foo’:
testcase-manual.c:4:6: internal compiler error: in graphite_loop_normal_form,
at graphite-sese-to-poly.c:2844
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

valgrind output:
no invalid accesses


-- 
           Summary: [4.5 Regression] ICE: in graphite_loop_normal_form, at
                    graphite-sese-to-poly.c:2844
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42521